SOS

noun \ ˌes-(ˌ)ō-ˈes \

Definition of SOS

1 : an internationally recognized signal of distress in radio code ‧ ‧ ‧ - - - ‧ ‧ ‧ used especially by ships calling for help
2 : a call or request for help or rescue

First Known Use of sos

1910


SOS Defined for English Language Learners

SOS

noun

Definition of SOS for English Language Learners

  • : a signal used by ships and airplanes to call for help


SOS Defined for Kids

SOS

noun \ ˌes-ō-ˈes \

Definition of SOS for Students

1 : an international radio code distress signal used especially by ships and airplanes calling for help
2 : a call for help

Medical Dictionary

SOS

abbreviation

medical Definition of SOS

if occasion require; if necessary used in writing prescriptions

Origin and Etymology of sos

Latin si opus sit



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